Subversion Repositories planix.SVN

Rev

Rev 2 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
2 - 1 
#include <u.h>
2 
#include <libc.h>
3 
#include <bio.h>
4 
#include "diff.h"
5 
 
6 
static int
7 
itemcmp(void *v1, void *v2)
8 
{
9 
	char **d1 = v1, **d2 = v2;
10 
 
11 
	return strcmp(*d1, *d2);
12 
}
13 
 
14 
static char **
15 
scandir(char *name)
16 
{
17 
	char **cp;
18 
	Dir *db;
19 
	int nitems;
20 
	int fd, n;
21 
 
22 
	if ((fd = open(name, OREAD)) < 0) {
23 
		fprint(2, "%s: can't open %s: %r\n", argv0, name);
24 
		/* fake an empty directory */
25 
		cp = MALLOC(char*, 1);
26 
		cp[0] = 0;
27 
		return cp;
28 
	}
29 
	cp = 0;
30 
	nitems = 0;
31 
	if((n = dirreadall(fd, &db)) > 0){
32 
		while (n--) {
33 
			cp = REALLOC(cp, char *, (nitems+1));
34 
			cp[nitems] = MALLOC(char, strlen((db+n)->name)+1);
35 
			strcpy(cp[nitems], (db+n)->name);
36 
			nitems++;
37 
		}
38 
		free(db);
39 
	}
40 
	cp = REALLOC(cp, char*, (nitems+1));
41 
	cp[nitems] = 0;
42 
	close(fd);
43 
	qsort((char *)cp, nitems, sizeof(char*), itemcmp);
44 
	return cp;
45 
}
46 
 
47 
static int
48 
isdotordotdot(char *p)
49 
{
50 
	if (*p == '.') {
51 
		if (!p[1])
52 
			return 1;
53 
		if (p[1] == '.' && !p[2])
54 
			return 1;
55 
	}
56 
	return 0;
57 
}
58 
 
59 
void
60 
diffdir(char *f, char *t, int level)
61 
{
62 
	char  **df, **dt, **dirf, **dirt;
63 
	char *from, *to;
64 
	int res;
65 
	char fb[MAXPATHLEN+1], tb[MAXPATHLEN+1];
66 
 
67 
	df = scandir(f);
68 
	dt = scandir(t);
69 
	dirf = df;
70 
	dirt = dt;
71 
	while (*df || *dt) {
72 
		from = *df;
73 
		to = *dt;
74 
		if (from && isdotordotdot(from)) {
75 
			df++;
76 
			continue;
77 
		}
78 
		if (to && isdotordotdot(to)) {
79 
			dt++;
80 
			continue;
81 
		}
82 
		if (!from)
83 
			res = 1;
84 
		else if (!to)
85 
			res = -1;
86 
		else
87 
			res = strcmp(from, to);
88 
		if (res < 0) {
89 
			if (mode == 0 || mode == 'n')
90 
				Bprint(&stdout, "Only in %s: %s\n", f, from);
91 
			df++;
92 
			continue;
93 
		}
94 
		if (res > 0) {
95 
			if (mode == 0 || mode == 'n')
96 
				Bprint(&stdout, "Only in %s: %s\n", t, to);
97 
			dt++;
98 
			continue;
99 
		}
100 
		if (mkpathname(fb, f, from))
101 
			continue;
102 
		if (mkpathname(tb, t, to))
103 
			continue;
104 
		diff(fb, tb, level+1);
105 
		df++; dt++;
106 
	}
107 
	for (df = dirf; *df; df++)
108 
		FREE(*df);
109 
	for (dt = dirt; *dt; dt++)
110 
		FREE(*dt);
111 
	FREE(dirf);
112 
	FREE(dirt);
113 
}